Seeing as he'd just had his smartphone in his hands to send the text, he answers after the first ring.

"Hey. Give me a minute." He heads to the back of the Quinjet for some degree of privacy; Natasha's kind enough to pretend to be engaged at the controls even though it's on autopilot.

"Felt the need to argue with me over the phone, huh?" Testing the waters to see if Bucky's still in the teasing mood after his last text.